KR100930710B1 - Reinforcing method of concrete telegraph pole using insulating and high strength fibers - Google Patents

Abstract

PURPOSE: A concrete telegraph pole reinforcement method using a nonconductive high strength fiber is provided to reinforce a concrete telephone pole without replacement. CONSTITUTION: A concrete telegraph pole reinforcement method using a nonconductive high strength fiber comprises followings. The cracking of the concrete telephone pole and the attachments of a deformed part are removed(S1). The part under the ground and the surrounding in which the concrete telephone pole is installed are excavated. The concrete telephone pole is polished and chipped for the surface treatment of the cracked and deformed parts(S3). The dust of the cracked part is eliminated(S4). A primer is spread to reinforce and prevent the surface(S5). Am aramid fiber board adheres to the vertically deformed part of the concrete telephone pole(S6). The aramid fiber sheet is impregnated in impregnating epoxy resin(S7). The impregnated aramid fiber sheet adheres to the reinforcing area of the concrete telephone pole(S8).

Description

Reinforcing method of concrete telegraph pole using insulating and high strength fibers}

The present invention relates to a method for reinforcing concrete poles using non-conductive high-strength fibers, and more particularly, to strip and sheet concrete poles in case of cracking and deformation due to aging, or to secure the load bearing capacity for additional loads such as communication lines. The present invention relates to a method for reinforcing concrete poles using non-conducting high strength fibers that can be used by attaching non-conducting high strength fibers to suppress cracking and reinforcing bending moments without replacing concrete poles.

Concrete telegraph pole supports electric power supply wire and communication cable, and the concrete pole is itself deformed and crack deformation occurs due to weathering, aging and deterioration for a long time, and concrete telegraph pole due to load by electric wire, communication line and transformer. Deformation (hereinafter referred to as 'vertical deformation') is generated in a direction perpendicular to the vertical direction, and vertical deformation is caused by the bending moment of the eccentric load according to the arrangement of the transformer and power line.

The problems with the old concrete telegraph pole are as follows.

First, after decades of installation, the concrete surface of the poles is deteriorated and neutralized, and corrosion of rebar is progressing.

Second, as a defect during fabrication, vertical, horizontal or reticulated cracks (hereinafter referred to as 'cracking') occur in the concrete itself due to freeze-thawing, and cracks are generated due to the separation of concrete material from formwork joints when manufacturing concrete poles. Some have become.

Fifth, the vertical deformation due to the excessive load than the design load is caused by the additional installation of transformers, communication lines and wires.

As the above concrete damaged poles not only hurt the aesthetics of the city, but also have serious problems in safety and need to be replaced, but the concrete concrete poles are not easy to access the work equipment, and the work is very difficult due to various obstacles around the concrete poles. In addition, the replacement may cause unexpected damage in case of power failure, and there is a problem that takes more cost when the replacement work uninterrupted.

Therefore, the present invention has been proposed to solve the conventional problems as described above, the object of the present invention is the concrete when the cracking and deformation occurs due to aging and the load capacity of the additional load due to the additional laying of the communication line It is to provide a method of reinforcing without replacing the telephone pole.

Another object of the present invention is to use the reinforcement material concrete concrete pole is a power facility, so there is no risk of electric shock, and the reinforcement material that is chemical resistance against weather resistance such as ultraviolet rays due to long time exposure to the outside and alkali resistance of concrete pole To provide a way to do it.

Another object of the present invention is to reinforce the warp in the direction perpendicular to the poles (hereinafter referred to as "vertical reinforcement") to the site where the vertical cracks of the concrete poles, and the ground at the site of the cracks of the concrete poles It is to change the application method of non-conducting high strength fiber depending on the case of reinforcing in the horizontal direction (hereinafter referred to as 'horizontal reinforcement').

Still another object of the present invention is to provide a method for reinforcing concrete poles having economic feasibility.

The method of reinforcing concrete poles using the non-conductor high-strength fiber is a deposit removal step for removing the attachment of cracks and deformation parts of concrete poles, an excavation step for excavating below and around the ground where concrete poles are installed, and the surface of cracks and deterioration sites of poles. Abrasive and chipping steps for treatment, Dust removal steps to remove dust from cracks in concrete poles, Primer coating steps for surface hardening and oxidation prevention of concrete poles, Adhesives to vertically deformed areas, including below the ground of concrete poles Nonconductive high strength fiber sheet attaching step to attach non-conductor high strength fiber board, impregnating step of impregnating nonconductive high strength fiber sheet to epoxy resin for impregnation of nonconductive high strength fiber sheet, nonconducting high strength fiber sheet to crack part of concrete pole Non-conducting high strength island to attach A sheet attaching step, the ground under and around the excavation with concrete telephone pole comprises a recovery step of recovering concrete cement.

In addition, the attachment removal step of removing the attachment of cracks and deformation parts of the concrete pole, the excavation step to excavate under and around the ground on which the concrete pole is installed, the polishing and chipping step for the surface treatment of the crack and deterioration site of the concrete pole A dust removal step to remove dust from cracks in the poles of the poles, a primer coating step to strengthen the surface of concrete poles and prevent oxidation, and a non-conductive high strength fiberboard using adhesive to vertically deformed areas including below the ground of concrete poles. Conductor attaching the high-strength fiberboard, and the recovery step of restoring the ground and the periphery of the excavated concrete pole to the concrete cement.

In addition, the attachment removal step of removing the attachment of cracks and deformation parts of the concrete pole, the excavation step to excavate under and around the ground on which the concrete pole is installed, the polishing and chipping step for the surface treatment of the crack and deterioration site of the concrete pole Dust removal step to remove dust from cracks in the body pole, primer coating step for surface strengthening and oxidation prevention of concrete pole, impregnation step of impregnating non-conductive high strength fiber sheet with impregnated epoxy resin, vertical deformation part of concrete pole Non-conductive high strength fiber sheet attaching step of wrapping and attaching the non-conductive high strength fiber sheet so that the direction in which the tensile strength of the non-conductive high strength fiber is formed parallel to the concrete pole, restoring under and around the ground of the excavated concrete pole to concrete cement Including recovery steps All.

The present invention can be reinforcement without replacing the concrete pole pole that is cracked and deformed due to aging, thereby reducing the 80-90% of the cost incurred during the replacement, can work uninterrupted without interrupting power It is effective to reduce the issuance of power failure due to the replacement of concrete poles.

Concrete poles reinforced with the present invention is also very resistant to impact can prevent the collapse of concrete poles due to vehicle collision that can occur around the road and the damage caused by power outages, and when replacing the old poles Waste concrete generated can reduce the environmental pollution caused by treatment.

Reinforcement work is possible in urban areas where vehicles and people pass frequently and are narrow and difficult to work or virtually impossible to replace.

In addition, there is no risk of electric shock by using a non-conductive high-strength fiber, there is an effect excellent in weather resistance and chemical resistance.

The specific gravity of non-conducting high-strength fiber is only about 1/5 of the steel, and since the weight does not increase even after reinforcement of concrete pole, it does not affect the structure of concrete pole and eccentric to vertically deformed concrete pole due to eccentric load. The non-conducting high strength fiberboard is continuously attached in the longitudinal direction from the ground of the concrete pole to the opposite side of the concrete pole of the load to effectively secure the strength against the bending moment of the concrete pole.

Non-conductor high-strength fiberboard is used for vertical reinforcement at the site where vertical deformation occurs due to eccentric loads, and non-conductor high-strength fiber sheet is used for horizontal reinforcement at the site where cracks occur. Can be. When the non-conductive high strength fiber sheet is attached and the non-conductive high strength fiber sheet is superimposed, there is an effect that the adhesion is increased, the strength is increased, and the reinforcing effect that can prevent cracking is increased.

In addition, the tensile strength direction of the non-conductor high strength fiber sheet is attached to the site where the vertical deformation occurs due to the eccentric load so that the non-conductor high strength fiber sheet can be obtained by wrapping it in parallel with the concrete pole.

When described in detail with reference to the accompanying drawings a preferred embodiment of the concrete pole pole reinforcement method using a non-conducting high-strength fiber according to the present invention.

In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to intentions or precedents of users or operators, and the meaning of each term should be interpreted based on the contents throughout the present specification. something to do.

First, the concrete pole pole reinforcement method using the non-conductor high-strength fiber of the present invention is a deposit removal step to remove the attachment of cracks and deformation parts of the concrete pole pole, excavation step to excavate the ground and surroundings, the concrete pole pole cracks and deterioration site Polishing and chipping step for surface treatment of dust, dust removal step to remove dust from cracked parts of concrete pole, primer coating step for surface strengthening and anti-oxidation of concrete pole, adhesive to vertically deformed parts including below the ground of concrete pole Nonconductive high strength fiber sheet attaching step to attach non-conductor high strength fiber sheet using, impregnating step of impregnating nonconductive high strength fiber sheet to epoxy resin for impregnation of nonconductive high strength fiber sheet, nonconducting high strength fiber sheet at crack site of concrete pole Non-conductor high attaching It comprises a step of attaching the strength fiber sheet, a recovery step for recovering the concrete underneath and around the ground of the excavated concrete pole to concrete cement.

The non-conducting high strength fiber plate is strip type non-conductive high strength fiber, preferably about 3 to 5 cm in width. The non-conducting high strength fiber sheet is a sheet type non-conducting high strength fiber is designed to be widely attached in the form of a sheet.

The non-conducting high strength fiber sheet and the non-conducting high strength fiber sheet have a direction with respect to the tensile strength for vertical reinforcement and horizontal reinforcement of concrete pole.

Since the non-conducting high strength fiber of the present invention has a tensile strength in the longitudinal direction of the unit fiber, the tensile strength of the non-conducting high strength fiber is attached to the telephone pole for vertical reinforcement in the vertical deformation portion due to the eccentric load in the crack and deformation of the concrete telephone pole. It is preferable to attach a non-conducting high strength fiber sheet, and it is preferable to attach the non-conducting high strength fiber sheet to the cracked portion so as to have tensile strength in a direction parallel to the ground for horizontal reinforcement.

In addition, when using a non-conductive high strength fiber sheet and a non-conductive high strength fiber sheet at the same time to reinforcement, the adhesion is increased, the strength is increased, the reinforcement effect to prevent cracking is increased.

In another embodiment of the present invention, the non-conductor high-strength fiber may be made of any one of aramid fiber, glass fiber, high-strength polyester fiber, vinylon fiber, repropylene fiber, acrylic fiber.

In another embodiment of the present invention, in the case of concrete poles in which vertical deformation has occurred or is expected to be generated, only the non-conducting high-strength fiber board may be used alone, and for this purpose, removal of deposits to remove deposits of cracks and deformation portions of the concrete poles. Step, excavation step to excavate below and around the ground where concrete pole is installed, grinding and chipping step for surface treatment of crack and deterioration site of concrete pole, dust removal step to remove dust from crack of concrete pole, concrete pole Primer coating step for surface hardening and oxidation prevention, Non-conductor high-strength fiber board attachment step of attaching non-conductor high-strength fiber board using adhesive to cracks and deformation parts including below the ground of concrete pole, Below ground of the excavated concrete pole Around concrete cement It comprises a recovery step of recovery.

In another embodiment of the present invention, the depth to be excavated below the ground in the excavation step is preferably 10 ~ 100cm, more preferably 60cm.

In another embodiment of the present invention, the adhesive in the attaching step of the non-conductive high-strength fiber plate is a mixture of the adhesive agent and the curing agent is preferably a mixing ratio of the adhesive agent and the curing agent is 2: 1.

In another embodiment of the present invention, the non-conducting high-strength fiber plate is preferably attached to the outer peripheral surface of the concrete pole in the longitudinal direction of one or more continuously in the range of less than 180 ° relative to the center point of the concrete pole, more preferably Is attached in the range of 90 ° or less.

In another embodiment of the present invention in the attachment step of the non-conducting high-strength fibers, the portion of the non-conducting high-strength fibers to be attached to the bottom portion of the concrete pole body is preferably 50 cm relative to the ground.

In another embodiment of the present invention, the impregnating epoxy resin in the attaching step of the non-conductive high-strength fiber sheet is used by mixing the epoxy resin and the curing agent, the mixing ratio of the epoxy resin and the curing agent is preferably 2: 1. .

In another embodiment of the present invention, instead of using the nonconducting high-strength fibreboard in the case of the concrete pole of the vertical deformation only non-conductor high-strength fiber sheet may be used. At this time, since the vertical deformation occurred, the tensile strength direction of the non-conducting high strength fiber sheet is wrapped and attached to be parallel to the concrete pole. This occurs in the direction perpendicular to the non-conducting high strength fiber sheet wrapped around the concrete pole due to cracks. For this purpose, the attachment removal step of removing the attachment of cracks and deformation parts of concrete poles, the excavation step of excavating under and around the ground where concrete poles are installed, the polishing and chipping step for surface treatment of cracks and deterioration of concrete poles, concrete Dust removal step to remove dust from cracks in the body pole, primer coating step for surface strengthening and oxidation prevention of concrete pole, impregnation step of impregnating non-conductive high strength fiber sheet with impregnated epoxy resin, vertical deformation part of concrete pole Non-conductor high-strength fiber sheet attaching step of wrapping and attaching the non-conductor high-strength fiber sheet so that the direction in which the tensile strength of the non-conductor high-strength fiber is formed parallel to the concrete pole, restoring under and around the ground of the excavated concrete pole to concrete cement This includes recovery steps Eojinda.

The length of general concrete pole is composed of 8 ~ 16m and has a design load of 200 ~ 700㎏. More than 80% of all concrete poles are ES102-216 standard, 16m in length and 500kg in design load.

Loads imposed on concrete poles are classified into vertical and horizontal loads. The vertical load is the weight of the main body, complete steel, insulator system and substation line, and the horizontal load is the horizontal component generated by the wind pressure applied to the main body, insulator system and substation line and the assumed maximum tension of the substation line.

When the vertical and horizontal loads are unbalanced, vertical deformation and cracks are generated in the concrete pole due to the eccentric moment, and recently, various communication lines are additionally laid in the concrete pole to increase the design load, thereby deforming the concrete pole.

Concrete poles generate the greatest bending moment at the ground contact, so the normal concrete poles are deformed or destroyed at the bottom where the bending moment is greatest.

In general concrete poles, eight 5 ~ 8mm rebars are stepped in a pretensioning manner.When the concrete poles receive bending moments higher than the design load, the lower part is broken first, and then the point where the number of rebars is reduced is broken. Reinforcement here is the most effective.

Therefore, the reinforcement of concrete poles is most important at the point of contact with the ground.

The non-conductor high-strength fiber used in the present invention exhibits excellent tensile strength properties, and after the repair and reinforcement of the structure, there is almost no increase in the weight of the structure due to construction. In addition, the use of nonconductive high-strength fibers because it is used in telephone poles can prevent an electric shock due to a short circuit.

After construction, the performance of concrete structures, such as increased strength and crack prevention are improved, and the impact resistance is excellent, which prevents the collapse of telegraph poles due to collisions of automobiles, and thus shows excellent fatigue characteristics and excellent fire resistance. It can be used in a variety of environmental conditions because it is short in terms of structure repair and reinforcement construction and has excellent corrosion resistance. There are various application cases in the developed countries, and they are actively applied. Also, the product is light and easy to transport, so it can be installed in the difficult site.

Non-conducting high strength fiber board is a product that is cured by impregnating epoxy resin with non-conducting high strength fiber with high strength and high elasticity as raw material. In the case of the non-conducting high strength fiber sheet, a process of impregnating epoxy resin at the construction site is required, but the non-conducting high strength fiber sheet can omit such an impregnation process at the construction site and thus exhibits rapid construction. As the epoxy resin is impregnated and cured in advance, construction defects such as impregnation defects and uncured epoxy resins that can occur at the construction site can be prevented in advance.The amount of resin impregnated is uniform so that the product quality is uniform. Has characteristics.

Hereinafter, a preferred embodiment of the present invention will be described. The following description is only one example and the present invention is not limited thereto.

In the following example, aramid fibers were used as the nonconducting high strength fibers.

As the non-conducting high strength fiber, any one of glass fiber, high strength polyesterylene fiber, vinylon fiber, repropylene fiber, and acrylic fiber, which can obtain a similar reinforcing effect in addition to aramid fiber, may be used. Fiber boards and fiber sheets can be manufactured and attached to specifications to reinforce concrete poles.

1 is a flowchart showing the present invention step by step.

Cracks in concrete poles are generated and deformed to remove attachments, such as power lines, communication lines, street lights, telephone pole identification plate in the vicinity and areas that need to be reinforced (S1).

Excavate below and below the ground where concrete poles are installed (S2). The reason for the excavation is to reinforce the vertical pole due to the bending moment in order to reinforce the concrete pole having vertical deformation.

10-100 cm is preferable and, as for the depth which excavates down from the surface, 50 cm is more preferable. The width range of the ground excavated from the concrete pole is about 20 cm.

When the excavation step is completed, grinding is performed using an abrasive tool for surface treatment of cracks and deteriorated parts of concrete poles, chipping is performed on deteriorated parts, and exposed steel wire is removed from rust and antirust treatment. (S3).

During the polishing operation, a dust inhaler is mounted to perform polishing operation so that concrete dust does not fly around the work site.

Through the polishing operation, the cracked part can be clearly identified, and the aramid fiber sheet 1 and the aramid fiber sheet 2 can be easily attached by making the part where the surface becomes uneven due to the crack evenly.

The areas where concrete deficiencies are caused by the chipping operation are filled with aqueous polymer epoxy mortar or high strength cement mortar.

After the step to remove the dust generated in the cracked site of the concrete pole by using a high-pressure jet (S4).

After removing the dust, a primer is applied to the area to be reinforced to strengthen the surface of the concrete pole and prevent oxidation (S5). The primer is used by mixing the primer main material and the hardener, and based on the weight, the primer main material and the hardener are mixed using an electric mixer until the color becomes uniform at a ratio of 2: 1, and then the reinforcement part of the concrete system pole Apply to

When the primer is completely dry, fill the hole and uneven part of the coated area with epoxy putty using a rubber or plastic spatula to finish the surface smoothly.

The non-conducting high-strength fiber of the present invention uses the strip type and the sheet type according to the use, and in the vertical deformation portion occurring mainly in the lower part of the concrete pole, the strip type aramid fiber plate 1 is used for the vertical reinforcement, and the crack is It is preferable to use the sheet-type aramid fiber sheet (2) for the horizontal reinforcement without distinguishing the upper and lower parts of the concrete pole.

The aramid fiber board 1 is previously cut into a suitable length using a non-conductive high strength fiber scissors and a cutter, and preferably has a width of 5 cm and a thickness of 1.2 to 1.4 mm.

An adhesive is applied to attach the aramid fiber plate 1 to the vertically deformed portion of the concrete pole, and then the aramid fiber plate 1 is attached (S6). The adhesive is used by mixing the adhesive main agent and the curing agent, and the adhesive main agent and the curing agent are mixed in a ratio of 2: 1 by weight, and then applied to the reinforcement site of the concrete pole.

Aramid fiber board (1) is used for the vertical reinforcement of vertically deformed concrete poles due to eccentric loads, so that the aramid fiber board (1) is continuously attached from the ground of the concrete pole to the top of the concrete poles in the longitudinal direction. In general, the vertical deformation of concrete poles occurs mainly under the concrete poles from the ground to a certain height.At this time, the aramid fiber board (1) is used from about 50cm below the ground of the concrete pole to about 200 ~ 300cm above the ground of the concrete pole. It is preferable to attach, and depending on the degree of cracking and eccentric load of the concrete pole, it may be continuously attached to the upper part of the concrete pole.

In addition, the aramid fiber board (1) is preferably attached to one or more continuously in the longitudinal direction from the lower side to the upper side on the opposite side of the vertically inclined inclined concrete pole, based on the center point of the concrete pole in the concrete pole It adheres in the range of 180 degrees or less, More preferably, it attaches in the range of 90 degrees or less.

When attaching the aramid fiber board (1), it is attached by pressing using a rubber rotating roller so that excess adhesive is drawn out to both sides of the aramid fiber board (1), and the adhesive used for attaching the aramid fiber board (1) is minimum for curing 30 minutes or more are required, and 3-4 hours or more are more preferable.

The work of the aramid fiber board 1 is preferably not performed in an environment of 5 ° C. or lower or an environment of 85% or higher relative humidity for adhesion strength.

When a crack occurs in the concrete pole, it is preferable to reinforce using the aramid fiber sheet (2). According to the crack and deformation site, the aramid fiber sheet (1) is first attached and then the aramid fiber sheet (2) is added to reinforce it. It may be. If the aramid fiber sheet 1 is attached first and then the aramid fiber sheet 2 is added, the effect of further increasing the adhesion strength of the aramid fiber sheet 1 may be obtained.

It is preferable that the specification of the aramid fiber sheet 2 is 280-415 g / m <2>.

In order to attach the aramid fiber sheet (2), it is preferable to grind and chip in advance for the surface treatment on the reinforcement part of the concrete pole of the concrete, similar to the aramid fiber sheet (1), and, if necessary, an aqueous polymer It is filled with epoxy mortar or high strength cement mortar.

When the aramid fiber sheet 2 is attached, an epoxy resin for impregnation is used. The impregnating epoxy resin is used by mixing the impregnating epoxy resin main material and the curing agent. The impregnating epoxy resin main material and the curing agent are mixed by an electric mixer until the color becomes uniform at a ratio of 2: 1.

The impregnation operation can be performed even on a flat plate, but in order to reduce the loss of the epoxy resin for impregnation, an impregnation plate in the form of a container having a height of 5 cm or less is preferable.

Pour the impregnated epoxy resin mixed on the impregnating plate and unfold the aramid fiber sheet (2) without wrinkles, and then use a rubber spatula to bury the impregnated epoxy resin on the upper surface of the aramid fiber sheet (2). Pour the epoxy resin for impregnation on the upper surface of the aramid fiber sheet (2) and evenly spread through a rubber spatula (S7).

When the impregnation operation is completed, the aramid fiber sheet (2) is attached to the reinforcement site of the concrete telegraph pole, using a rubber spatula to strongly adhere to remove bubbles and excess impregnation epoxy resin between the reinforcement site and the sheet (S8).

Aramid fiber sheet (2) can be reinforced by attaching one or more layers depending on the cracks and deformation parts, it is not desirable to attach more than two layers per day because a certain curing time is required after attachment. In addition, in the case of the second layer aramid fiber sheet (2) work, it is preferable to remove the epoxy resin for impregnation remaining on the impregnating plate and then pour a new epoxy resin for impregnation.

Aramid fiber sheet (2) can be attached to each site where the crack is generated, so the crack does not distinguish between the lower part and the upper part of the concrete pole of the concrete is attached to each site requiring reinforcement.

In order to complete the aramid fiber sheet 2 reinforcement and to express the design strength of the aramid fiber sheet 2, an initial curing period of about 2 to 4 days is required, and more preferably about 7 to 14 days. In case of outdoor construction, cover the protective cover to prevent contamination by rainwater or wind dust during the curing period, and the protective cover does not touch the construction surface of the aramid fiber sheet (2).

For adhesion strength of the aramid fiber sheet 2, it is preferable not to work in an environment of 5 ° C or less or an environment of 85% or more relative humidity.

Figure 2 is a cross-sectional view of the concrete telegraph pole reinforced with aramid fiber sheet (1) and aramid fiber sheet (2), Figure 3 is a concrete telegraph pole and aramid fiber sheet (1) and aramid fiber sheet (2) reinforced only with aramid fiber sheet (1) Elevation of the concrete telegraph pole using) together.

When the reinforcement work of the concrete telegraph pole is completed, the excavation sites below and around the ground of the concrete pole of the concrete pole are restored using concrete cement (S9).

When the aramid fiber sheet (2) reinforcement work is completed, paint the exterior finish of concrete pole as needed. The construction method of finish paint is to follow the standard construction method of each paint.

After painting, be sure to use a fluorine-based or urethane-based paint in the place where sunlight directly or indirectly touches to prevent damage to the epoxy resin for impregnation.

 If painting is not required, an advertisement attachment prevention member may be attached to the lower part of the concrete pole. The advertisement attachment preventing member uses a projection form, artificial turf, or a sheet member developed for preventing adhesion.

4 is a diagram showing numerically the results of the stress test for the case where the aramid fiber sheet 1 of the present invention is attached.

The aramid fiber board 1 used for the test had the characteristics of thickness: 1.40 mm, width: 50 mm, cross section: 70 mm, tensile elasticity: 6.12 × 10 Kgf / cm 2, tensile strength: 14,000 Kgf / cm 2, Each design moment value and evaluation value according to the standard and the number of attachments (1Play, 2Play, 3Play) of the aramid fiber board (1) can be confirmed.

According to the above diagram, it can be confirmed that the concrete telegraph pole to which the aramid fiber board 1 is attached has a value two to three times larger than the design moment value of the existing concrete telegraph pole.

Therefore, by attaching the aramid fiberboard (1) to the vertically deformed site by the bending moment of the concrete telegraph pole, it can effectively reinforce the concrete telegraph pole, and can reduce a lot of costs incurred in replacement by reinforcing the concrete pole without replacing it It works.

In addition, when a crack is generated, the aramid fiber sheet 1 is more effective after the aramid fiber sheet 2 is attached, and only the aramid fiber sheet 2 may be attached depending on the crack and deformation site.

As described above, although the present invention has been described with reference to the accompanying drawings, the terms or words used in the present specification and claims are not to be construed as being limited to ordinary or dictionary meanings, and are consistent with the technical spirit of the present invention. It must be interpreted as meaning and concept. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only one embodiment of the present invention and do not represent all of the technical idea of the present invention, various equivalents that may be substituted for them at the time of the present application It should be understood that there may be variations and variations.

1 is a flow chart showing the present invention step by step.

2 is a cross-sectional view of the concrete pole pole reinforced by the present invention.

3 is an elevation view of a concrete telegraph pole reinforced by the present invention.

Figure 4 is a stress test results chart reinforced concrete pole of the present invention.

<Explanation of symbols for the main parts of the drawings>

1: aramid fiber board which is one embodiment of the non-conductive high-strength fiber board

2: aramid fiber sheet which is one embodiment of the non-conductive high strength fiber sheet

Claims (10)

Deposition removal step to remove the adhesion of cracks and deformation parts of the concrete pole, Excavation step to excavate below and around the ground where concrete pole is installed, Polishing and chipping step for surface treatment of cracks and deterioration of concrete poles, A dust removal step of removing dust from cracks in concrete poles, Primer coating step for surface strengthening and oxidation prevention of concrete pole Non-conductor attaching non-conducting high strength fiberboard with a unidirectional tensile strength and a width of 3 ~ 5cm to the longitudinal direction due to eccentric load including below the ground of concrete pole in parallel with the longitudinal direction of concrete pole High strength fiber board attachment step, Impregnation step of impregnating the non-conductive high strength fiber sheet to the impregnation epoxy resin, Non-conducting high strength fiber sheet attaching step of wrapping and attaching non-conducting high strength fiber sheet having unidirectional tensile strength in parallel with the ground to crack and deformation parts of concrete pole It includes a recovery step for recovering the concrete underneath and around the ground of the excavated concrete pole to concrete cement, In the excavation step, the depth to excavate below the ground is 10 ~ 100cm, The non-conductor high-strength fiber sheet and the non-conductor high-strength fiber sheet in the attachment step of the non-conductor high strength fiber sheet, characterized in that the range of the surface is attached to the floor below the concrete pole pole 10 ~ 60cm based on the ground How to reinforce concrete poles. Deposition removal step to remove the adhesion of cracks and deformation parts of the concrete pole, Excavation step to excavate below and around the ground where concrete pole is installed, Polishing and chipping step for surface treatment of cracks and deterioration of concrete poles, A dust removal step of removing dust from cracks in concrete poles, Primer coating step for surface strengthening and oxidation prevention of concrete pole Non-conductor attaching non-conducting high strength fiberboard with a unidirectional tensile strength and a width of 3 ~ 5cm to the longitudinal direction due to eccentric load including below the ground of concrete pole in parallel with the longitudinal direction of concrete pole High strength fiber board attachment step, It includes a recovery step for recovering the concrete underneath and around the ground of the excavated concrete pole to concrete cement, In the excavation step, the depth to excavate below the ground is 10 ~ 100cm, The non-conductor high-strength fiber sheet and the non-conductor high-strength fiber sheet in the attachment step of the non-conductor high-strength fiber sheet, the range of the surface is attached to the floor below the concrete pole pole using a non-conductor high strength fiber, characterized in that How to reinforce concrete poles. The method according to claim 1 or 2, The non-conductor high-strength fiber is aramid fiber, glass fiber, high-strength polyester fiber, vinylon fiber, repropylene fiber, acrylic fiber reinforcement method for concrete pole pole using non-conductor high-strength fiber. delete delete delete The method according to claim 1 or 2, The non-conducting high-strength fiber plate reinforces the concrete telegraph pole using a non-conductive high-strength fiber characterized in that one or more continuously attached to the outer circumferential surface of the concrete pole pole longitudinally in the range of less than 180 ° relative to the center point of the concrete pole. delete delete delete

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